Patents by Inventor Roger Dale Joyce

Roger Dale Joyce has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for conversion of breech-loading firearms into muzzle-loading firearms
    Patent number: 6862828
    Abstract: The present invention is a system for converting a conventional modern firearm into a muzzle-loading firearm capable of utilizing modern rifle propellants. The invention utilizes a breech plug disposed in the breech end of a firearm to accept a rifle primer and powder charge, and a primer installation tool to accurately and securely seat a rifle primer in a primer pocket.
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: March 8, 2005
    Inventor: Roger Dale Joyce